19
″
LCD Color Monitor
Casper 19CSPR
32
8. Maintainability
8.1 Equipments and Tools Requirement
1. Voltmeter.
2. Oscilloscope.
3. Pattern
Generator.
4. DDC Tool with an IBM Compatible Computer.
5. Alignment
Tool.
6. LCD
Color
Analyzer.
7. Service
Manual.
8. User
Manual.
8.2 Trouble Shooting
8.2.1 Main Board
No power
No power
Press power key and look if the
picture is normal
Please reinsert and make sure the
AC of 100V-240V is normal
Reinsert or check the
power section
Check if X401 oscillate
waveforms are normal
Check C423(+) =1.8V
U404 Vout=3.3V
OK
OK
NG
NG
NG
Check CN404 or replace Q409,
Q410, and U404
Replace U401
Replace X401
NG
OK
Содержание 19CSPR
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Страница 13: ...19 LCD Color Monitor Casper 19CSPR 13 4 3 3 Electrical Characteristics TFT LCD Module Back Light Unit...
Страница 27: ...19 LCD Color Monitor Casper 19CSPR 27 7 PCB Layout 7 1 Main Board 715G2904 1...
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Страница 29: ...19 LCD Color Monitor Casper 19CSPR 29 7 2 Power Board 715G2824 2 2...
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Страница 31: ...19 LCD Color Monitor Casper 19CSPR 31 7 3 Key Board 715G2835 1...